| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Language of Song | 978-0-571-53075-5 (0-571-53075-3) | 2008 | Heidi Pegler |
| The Language Of Song: Elementary | 978-0-571-52346-7 (0-571-52346-3) | 2006 | " |
| The Language of Song: Intermediate - High Voice | 978-0-571-52343-6 (0-571-52343-9) | 2006 | " |